ASTM A387 GR 9 CLASS 2 ASME SA387

ASTM A387 GR 9 CLASS 2 ASME SA387 yog cov khoom siv tshwj xeeb uas tuav qhov tseem ceeb hauv ntau yam kev lag luam. Txhawm rau kom nkag siab tag nrho nws cov peev txheej thiab daim ntawv thov, nws yog qhov tseem ceeb los tshawb nrhiav nws cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab ntau hom kev siv uas nws muaj.

Cov tshuaj lom neeg muaj pes tsawg leeg ntawm ASTM A387 GR 9 CLASS 2 ASME SA387 yog tsim los ua kom tiav. Nws feem ntau muaj cov ntsiab lus tshwj xeeb xws li carbon (ib ncig 0.08% - 0.15%), manganese (0.30% - 0.60%), silicon (0.15% - 0.40%), chromium (8.00% - 10.00%), thiab molybdenum (0.85% - 1.05%). Lub xub ntiag ntawm cov khoom no ua rau muaj qhov tshwj xeeb ntawm cov hlau.

Cov ntsiab lus carbon cuam tshuam lub hardness thiab lub zog ntawm cov khoom. Manganese txhim kho nws qhov toughness thiab ductility, tso cai rau nws los tiv thaiv txhua yam kev ntxhov siab yam tsis muaj kev tawg lossis tawg yooj yim. Silicon txhim kho cov hlau deoxidation thaum lub sijhawm tsim khoom. Chromium thiab molybdenum ua lub luag haujlwm tseem ceeb hauv kev muab kev tiv thaiv rau kub kub, oxidation, thiab corrosion.

Thaum nws los txog rau cov khoom siv kho tshuab, ASTM A387 GR 9 CLASS 2 ASME SA387 nthuav tawm cov yam ntxwv zoo kawg li. Lub zog tensile feem ntau yog li ntawm 515 MPa rau 690 MPa, ua kom pom nws lub peev xwm los tiv thaiv kev rub tawm. Lub zog tawm los yog kwv yees li 310 MPa rau 380 MPa, qhia qhov taw tes ntawm cov khoom pib deform plastically. Lub elongation ntawm pob txha tuaj yeem nyob ib ncig ntawm 20% mus rau 22%, qhia txog nws cov ductility thiab muaj peev xwm ncab ua ntej tawg.

Lub hardness ntawm qib steel no feem ntau ntog hauv thaj tsam ntawm 170 HB txog 220 HB. Qhov hardness no muab kev tiv thaiv rau hnav thiab abrasion, ua rau nws haum rau cov ntawv thov qhov chaw durability yog qhov tseem ceeb.

Cov khoom siv kho tshuab zoo heev ntawm ASTM A387 GR 9 CLASS 2 ASME SA387 ua rau nws siv tau rau ntau qhov kev lag luam. Nyob rau hauv lub zog tsim sector, nws yog feem ntau siv nyob rau hauv fabrication ntawm boiler Cheebtsam, xws li nruas thiab raj, qhov uas nws muaj peev xwm tiv taus qhov kub thiab txias thiab pressures txuam nrog rau chav tsev. Kev lag luam petrochemical siv nws rau cov hlab ntsha siab, cov reactors, thiab cov khoom siv hluav taws xob uas ua rau cov tshuaj corrosive thiab kub kub.

Hauv kev tsim cov tshuab thiab cov cuab yeej siv, qib steel no pom cov ntawv thov hauv cov khoom uas raug hnyav hnyav thiab kev ntxhov siab. Piv txwv li, nws tuaj yeem siv rau hauv kev tsim cov iav, shafts, thiab bearings.

Kev lag luam aerospace tau txais txiaj ntsig los ntawm nws qhov kub thiab txias tsis kam thiab lub zog hauv kev tsim cov khoom siv cav thiab cov khoom siv. Automotive sector tseem siv nws nyob rau hauv qhov tseem ceeb uas yuav tsum tau superior mechanical zog rau kev txhim kho kev ua tau zoo thiab kev nyab xeeb.

Hauv kev tsim kho kev lag luam, ASTM A387 GR 9 CLASS 2 ASME SA387 tuaj yeem siv rau hauv kev tsim cov tswv cuab thiab kev txhawb nqa uas yuav tsum muaj kev tiv thaiv ib puag ncig hnyav thiab hnyav hnyav.

Hauv cov ntsiab lus, ASTM A387 GR 9 CLASS 2 ASME SA387 yog cov khoom siv hluav taws xob zoo nrog cov tshuaj tswj tau meej meej thiab cov khoom siv kho tshuab zoo heev. Nws ntau yam kev siv thoob plaws kev lag luam sib txawv ua rau nws yog qhov tseem ceeb xaiv rau ntau yam engineering thiab kev tsim khoom. Kev tshawb fawb tsis tu ncua thiab kev txhim kho kev siv zog yuav ua kom zoo dua nws cov khoom thiab nthuav dav nws cov kev siv hauv cov thev naus laus zis tshiab thiab kev siv.

Cim npe nrov: astm a387 gr 9 chav kawm 2 asme sa387, Tuam Tshoj astm a387 gr 9 chav kawm 2 asme sa387 lwm tus neeg, Hoobkas